Impeller hub
[化] 叶轮轮毂
🧩 词语组成解析
n. 推进者, 叶轮\\n[化] 叶轮
hub
[hʌb]
n. 轮轴;中心，焦点;（电器面板上的）电线插孔;[计]集线器;
🗣️ 情景例句
Sounds like ...
声音像……
Every dog has his day, and every man his hour.
人人都有得意的日子。
Why not?
为什么？